gecko-dev/lib/libdom/domelement.c
shaver%netscape.com 5998e7b720 Added CData operations (append, insert, delete, replace, substring).
Added Element {[sg]et,remove}Attribute
Check for illegal child in Node ops appendChild, insertBefore and replaceChild.
1998-08-27 05:25:40 +00:00

225 lines
5.6 KiB
C

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*
* DOM Element implementation.
*/
#include "dom_priv.h"
DOM_Element *
DOM_NewElement(void)
{
DOM_Element *element = XP_NEW_ZAP(DOM_Element);
if (!element)
return NULL;
element->node.type = NODE_TYPE_ELEMENT;
return element;
}
static JSPropertySpec element_props[] = {
{"tagName", DOM_ELEMENT_TAGNAME, JSPROP_READONLY, 0, 0},
{0}
};
static JSBool
element_getter(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
intN slot;
DOM_Element *element;
if (!JSVAL_IS_INT(id))
return JS_TRUE;
slot = JSVAL_TO_INT(id);
/*
* Look, ma! Inheritance!
* We handle .attributes ourselves because we return something other
* than null, unlike every other Node subclass.
*/
if (slot != DOM_NODE_ATTRIBUTES &&
slot <= DOM_NODE_NODENAME &&
slot >= DOM_NODE_HASCHILDNODES) {
return dom_node_getter(cx, obj, id, vp);
}
element = (DOM_Element *)JS_GetPrivate(cx, obj);
if (!element)
return JS_TRUE;
if (slot == DOM_ELEMENT_TAGNAME) {
JSString *tagName =
JS_InternString(cx, element->tagName ? element->tagName : "#tag");
if (!tagName)
return JS_FALSE;
*vp = STRING_TO_JSVAL(tagName);
}
return JS_TRUE;
}
static JSBool
element_setter(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
return JS_TRUE;
}
static JSBool
element_getAttribute(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
DOM_Element *element;
JSString *name;
char *value;
JSBool cache;
if (!JS_ConvertArguments(cx, argc, argv, "S", &name))
return JS_FALSE;
element = (DOM_Element *)JS_GetPrivate(cx, obj);
if (!element)
return JS_TRUE;
value = element->ops->getAttribute(cx, element, JS_GetStringBytes(name),
&cache);
if (value) {
*rval = STRING_TO_JSVAL(JS_InternString(cx, value));
if (!JSVAL_TO_STRING(*rval))
return JS_FALSE;
} else {
*rval = STRING_TO_JSVAL(JS_GetEmptyStringValue(cx));
}
return JS_TRUE;
}
static JSBool
element_setAttribute(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
DOM_Element *element;
JSString *name, *value;
if (!JS_ConvertArguments(cx, argc, argv, "SS", &name, &value))
return JS_FALSE;
element = (DOM_Element *)JS_GetPrivate(cx, obj);
if (!element)
return JS_TRUE;
return element->ops->setAttribute(cx, element, JS_GetStringBytes(name),
JS_GetStringBytes(value));
}
static JSBool
element_removeAttribute(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
DOM_Element *element;
JSString *name;
if (!JS_ConvertArguments(cx, argc, argv, "S", &name))
return JS_FALSE;
element = (DOM_Element *)JS_GetPrivate(cx, obj);
if (!element)
return JS_TRUE;
/* NULL setAttribute call indicates removal */
return element->ops->setAttribute(cx, element, JS_GetStringBytes(name),
NULL);
}
static JSBool
element_getAttributeNode(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
return JS_TRUE;
}
static JSBool
element_setAttributeNode(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
return JS_TRUE;
}
static JSBool
element_removeAttributeNode(JSContext *cx, JSObject *obj, uintN argc,
jsval *argv, jsval *rval)
{
return JS_TRUE;
}
static void
element_finalize(JSContext *cx, JSObject *obj)
{
return;
}
static JSClass DOM_ElementClass = {
"Element", JSCLASS_HAS_PRIVATE,
JS_PropertyStub, JS_PropertyStub, element_getter, element_setter,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, element_finalize
};
JSObject *
DOM_NewElementObject(JSContext *cx, DOM_Element *element)
{
JSObject *obj;
obj = JS_ConstructObject(cx, &DOM_ElementClass, NULL, NULL);
if (!obj)
return NULL;
if (!JS_SetPrivate(cx, obj, element))
return NULL;
element->node.mocha_object = obj;
return obj;
}
JSObject *
DOM_ObjectForElement(JSContext *cx, DOM_Element *element)
{
if (!element)
return NULL;
if (element->node.mocha_object)
return element->node.mocha_object;
return DOM_NewElementObject(cx, element);
}
static JSBool
Element(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *vp)
{
return JS_TRUE;
}
JSObject *
dom_ElementInit(JSContext *cx, JSObject *scope, JSObject *node_proto)
{
JSObject *proto = JS_InitClass(cx, scope, node_proto, &DOM_ElementClass,
Element, 0,
element_props, NULL,
NULL, NULL);
if (!JS_DefineProperties(cx, proto, dom_node_props))
return NULL;
return proto;
}